From what I see, it seems that you need a function that swaps position of every 2 bits in a number. few examples: 10’00’11’01’01 -> 01’00’11’10’10 11’01’10’10’11 -> 11’10’01’01’11 for this operation, a very simple function is following: unsigned int change_bit(unsigned int num) { return ((num & 0xAAAAAAAA) >> 1) | ((num & 0x55555555) << … Read more
I feel you should try to fully master one language before advancing to another. If you juggle too many at the same time you will just mix up their syntax and spend a lot of time becoming a jack of all trade and a master of non. 6 solved Should I learn C++ before I … Read more
In main, queen(ent);, rather than creating a temporary queen using the constructor taking an int, tries to create a queen object called ent using the default constructor. Since ent already exists as an int the compiler throws an error. The solution is to create the object like this: queen q(ent); 3 solved Passing an integer … Read more
What you do is use a conditional SUM SELECT SUM(CASE WHEN field IS NULL THEN 1 ELSE 0 END) as numNULL, SUM(CASE WHEN field IS NULL THEN 0 ELSE 1 END) as numNOT_NULL, FROM table EDIT Sorry if i missunderstand your question. But your comment is very different to you original question. http://www.w3schools.com/sql/sql_func_count.asp SQL COUNT(column_name) … Read more
First of all and most importantly: This is not good C++ code, not even decent. For example, some of your #includes are wrong, like <stdio.h> should be <cstdio> instead. The worst thing here are those #defines that make your code utterly unreadable. You really should read a good book on C++! For better readability I … Read more
you can use regex and replaceAll method String out = str.replaceAll(“[^01]”, “”); 0 solved Remove all chars in java string, except ‘0’ and ‘1’ [closed]
first part double[] arr=new double[50]; for(int i=0;i<25;i++) arr[i]=i*i; second part for(int i=25;i<arr.length;i++) arr[i]=3*i; third part for(int i=0;i<arr.length;i++) { if((i%10==0)&&i!=0) System.out.println(arr[i]+” “); else System.out.print(arr[i]+” “); } I’m not sure if i understood you but the first part is the squared index, the second is the double index, the third is printing the array, notice that after … Read more
use this <?xml version=”1.0″ encoding=”utf-8″?> <android.support.v7.widget.Toolbar xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:app=”http://schemas.android.com/apk/res-auto” android:id=”@+id/toolbar” app:theme=”@style/ThemeOverlay.AppCompat.Dark.ActionBar” android:layout_width=”match_parent” android:layout_height=”wrap_content” android:minHeight=”?attr/actionBarSize” app:navigationContentDescription=”@string/abc_action_bar_up_description” android:background=”?attr/colorPrimary” app:navigationIcon=”?attr/homeAsUpIndicator” app:title=”@string/action_settings” /> this is another example <RelativeLayout xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:app=”http://schemas.android.com/apk/res-auto” android:orientation=”vertical” android:layout_width=”match_parent” android:layout_height=”match_parent”> <android.support.v7.widget.Toolbar android:id=”@+id/toolbar” android:layout_width=”match_parent” android:layout_height=”8dp” android:minHeight=”?attr/actionBarSize” android:background=”?attr/colorPrimary” app:popupTheme=”@style/ThemeOverlay.AppCompat.Light”/> <FrameLayout android:id=”@+id/putPrefsContentHere” android:layout_width=”match_parent” android:layout_height=”wrap_content” /> </RelativeLayout> 4 solved XML parsing error (android studio)
You made a mistake in the formulae. The way you’re looking at it, you should write: (a + sqrt(b^2 + c^2)) (b + sqrt(a^2 + c^2)) (c + sqrt(a^2 + b^2)). And even then, you wouldn’t get the shortest distance. To give an example, suppose the cube is of 1x1x1 units with sides along the … Read more
The fastest way that the rumour will travel is when the roumor starts in the middle of the matrix. Since it travels only horizontally or vertically, if it starts from the middle then it will take m/2 + n/2 days to reach a corner in the worst case. Just try this printf(“%d\n”,m/2+n/2); it should work. … Read more
You need to define a variable, then you can pass the result of a function function ongoing_cases_control($isAdmin) { if ($isAdmin) { // Note “== 1” will be true for any value that evaluates to true, so might as well just check for any value that evaluates to true. // Return the result so you don’t … Read more
You are returning from the method/function even before the comparison is happening. Check line number 3 return super.onCreateDialog(paramInt); solved Unreachable statement for if statement [closed]
Few observations: Image sizes (5000px X 5000px) – images are too big to be shown over the web. Sizes should be optimized further with a scope getting load down by 70 to 80%. Positions of HIP divs – why these divs are appearing at the top. Best practice would be to wrap all these HIP … Read more
As MySql have YYYY-MM-DD HH:II:SS format you can achieve it using DateTime function of PHP as $date = DateTime::createFromFormat(‘d M Y H:i:s:u’, ’13 Sep 2014 00:35:23:440′); echo $date->format(‘Y-m-d H:i:s’); DEMO 1 solved PHP DateTime supported formats
You have to address the name Attribute of your input Elements Serverside. So if you would have <input type=”text” name=”username” id=”userelementid”> then you would still use request.getParameter(“username”) 0 solved which should i use in request.getParameter in servlet? [duplicate]